WO2004008545A1 - 有機半導体素子及びその製造方法 - Google Patents
有機半導体素子及びその製造方法 Download PDFInfo
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- WO2004008545A1 WO2004008545A1 PCT/JP2003/008761 JP0308761W WO2004008545A1 WO 2004008545 A1 WO2004008545 A1 WO 2004008545A1 JP 0308761 W JP0308761 W JP 0308761W WO 2004008545 A1 WO2004008545 A1 WO 2004008545A1
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- Prior art keywords
- organic semiconductor
- semiconductor layer
- electrode
- semiconductor device
- gate electrode
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 193
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 10
- 238000010030 laminating Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 230000009477 glass transition Effects 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 238000007740 vapor deposition Methods 0.000 claims description 2
- 230000004927 fusion Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 15
- 239000000758 substrate Substances 0.000 description 11
- 238000001704 evaporation Methods 0.000 description 10
- 230000008020 evaporation Effects 0.000 description 9
- 239000010408 film Substances 0.000 description 6
- IBHBKWKFFTZAHE-UHFFFAOYSA-N n-[4-[4-(n-naphthalen-1-ylanilino)phenyl]phenyl]-n-phenylnaphthalen-1-amine Chemical compound C1=CC=CC=C1N(C=1C2=CC=CC=C2C=CC=1)C1=CC=C(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C3=CC=CC=C3C=CC=2)C=C1 IBHBKWKFFTZAHE-UHFFFAOYSA-N 0.000 description 5
- 239000011368 organic material Substances 0.000 description 5
- 239000011651 chromium Substances 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 238000005401 electroluminescence Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 150000002894 organic compounds Chemical class 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 125000001637 1-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C(*)=C([H])C([H])=C([H])C2=C1[H] 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 239000004305 biphenyl Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 239000005725 8-Hydroxyquinoline Substances 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229960003540 oxyquinoline Drugs 0.000 description 1
- -1 porphyrin compound Chemical class 0.000 description 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/80—Field effect transistors with field effect produced by a PN or other rectifying junction gate, i.e. potential-jump barrier
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/80—Constructional details
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/311—Phthalocyanine
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/321—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3]
- H10K85/324—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3] comprising aluminium, e.g. Alq3
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
Definitions
- the present invention relates to an organic semiconductor device having an organic semiconductor layer made of a carrier-mobile organic compound and a method for manufacturing the same.
- a thickness direction of the organic semiconductor layer is determined by a gate electrode between a source electrode and a drain electrode sandwiching the organic semiconductor layer. Voltage can be applied to switch the current in the thickness direction of the organic semiconductor layer.
- an organic semiconductor layer 13 was sandwiched between a pair of a source electrode 11 and a drain electrode 15 and a gate electrode 14 was formed halfway in the thickness direction of the organic semiconductor layer. It has a terminal structure.
- the current between the source electrode and the drain electrode can be controlled by the depletion layer DpL formed in the organic semiconductor layer.
- a plurality of depletion layers D p L of an organic semiconductor layer generated around a plurality of strip-shaped branches of a gate electrode 14 to which a positive charge is applied causes a source-to-drain electrode Prevents carrier movement in the film thickness direction.
- the depletion layer D pL does not expand sufficiently, the gap W between the strip-shaped branches of the gate electrode 14 shown in FIG. 2 cannot be filled with the depletion layer D p L, and the leakage occurs.
- the current increases. That is, it is necessary to form a gate electrode using a microstructured mask in order to prevent carrier movement and reduce the interval between the strip-shaped branches of the gate electrode in order to reduce leakage current.
- the thickness of an organic semiconductor layer in an organic transistor having a SIT structure is several hundred nm, and a gate electrode to be formed between a source electrode and a drain electrode has a thickness of 50 to 100 nm. Then, when the organic semiconductor layer, the gate electrode, and the organic semiconductor layer are sequentially formed, the plurality of rectangular branches of the gate electrode are directly transferred to the organic semiconductor layer and the drain electrode that are laminated in a subsequent process. As a result, irregularities remain on the surface, which increases the leakage current.
- One of the problems to be solved by the present invention is to provide an organic semiconductor element in which generation of a leakage current between electrodes is suppressed.
- the organic semiconductor device of the present invention is an organic semiconductor device including a P-type organic semiconductor layer sandwiched between a source electrode and a drain electrode, wherein the n-type organic semiconductor is interposed between the P-type organic semiconductor layers. And a gate electrode embedded in the n-type organic semiconductor layer.
- the organic semiconductor device of the present invention is an organic semiconductor device including an n-type organic semiconductor layer sandwiched between a source electrode and a drain electrode, wherein the p-type organic semiconductor layer is interposed between the n-type organic semiconductor layers.
- An organic semiconductor device comprising: a layer; and a gate electrode embedded in the P-type organic semiconductor layer.
- the organic semiconductor element of the present invention is an organic semiconductor element having an organic semiconductor layer sandwiched between a source electrode and a drain electrode and having carrier mobility, wherein the organic semiconductor element is embedded in the organic semiconductor layer and has the source electrode and the drain. It is characterized by having a gate electrode composed of at least two intermediate electrode pieces arranged on each of at least two planes juxtaposed apart from each other and arranged in the film thickness direction.
- the method for producing an organic semiconductor device of the present invention is a method for producing an organic semiconductor device comprising an organic semiconductor layer formed between a source electrode and a drain electrode and embedding a gate electrode,
- an embedding step of softening the formed organic semiconductor and embedding the intermediate electrode piece is included.
- FIG. 1 is a cross-sectional view showing an organic transistor.
- FIG. 2 is a cross-sectional view taken along line AA in FIG.
- FIG. 3 is a cross-sectional view of an organic transistor according to an embodiment of the present invention.
- FIG. 4 is a cross-sectional view taken along line AA in FIG.
- 5 to 11 are cross-sectional views illustrating a part of the manufacturing process of the organic transistor according to the embodiment of the present invention.
- FIGS. 12 and 13 are explanatory diagrams of the operation of the organic transistor according to the embodiment of the present invention.
- FIGS. 14 and 15 are cross-sectional views of an organic transistor according to another embodiment of the present invention.
- FIG. 16 is a cross-sectional view showing an organic transistor-type organic electroluminescence device according to another embodiment of the present invention.
- FIG. 17 is a sectional view of an organic transistor according to an embodiment of the present invention.
- FIG. 18 is a cross-sectional view taken along line AA of FIG.
- FIGS. 19 to 25 are cross-sectional views showing a part of the manufacturing process of the organic transistor according to the embodiment of the present invention.
- FIG. 26 is a sectional view of an organic transistor according to another embodiment of the present invention.
- FIG. 27 is a cross-sectional view taken along line AA in FIG.
- FIG. 28 is a cross-sectional view showing an organic transistor-type organic electroluminescence device according to another embodiment of the present invention.
- FIGS. 29 to 31 are sectional views of an organic transistor according to another embodiment of the present invention. It is.
- FIG. 3 shows a cross section of the organic transistor having the SIT structure according to the embodiment.
- an lp-type organic semiconductor layer 13 P 1 a first n-type organic semiconductor layer 13 n 1, a gate electrode 14, and a second n-type organic semiconductor layer 1 are formed on the source electrode on the substrate 10.
- 3 n 2 a second p-type organic semiconductor layer 13 p 2, and a drain electrode 15 are sequentially stacked.
- These organic semiconductor layers have carrier mobility, and the lp-type organic semiconductor layer 13 p 1 and the second p-type organic semiconductor layer 13 p 2 are made of a p-type organic semiconductor material (hole transporting material).
- the first n-type organic semiconductor layer 13 n 1 and the second n-type organic semiconductor layer 13 n 2 are made of an n-type material (electron transporting property). Such an element has a pnp junction, which is connected to the source electrode 11, the gate electrode 14, and the drain electrode 15 respectively. Therefore, the organic transistor according to the embodiment is an organic semiconductor device including a p-type organic semiconductor layer sandwiched between the source electrode 11 and the drain electrode 15 as a whole.
- n-type organic semiconductor layer (In-type organic semiconductor layer 13 n 1 and second n-type organic semiconductor layer 13 n 1) interposed between the first p-type organic semiconductor layer 13 p 1 and the second p-type organic semiconductor layer 13 p 2) The movement of carriers is controlled by the n-type organic semiconductor layer 1 3 n 2).
- the gate electrode 14 is embedded in the n-type organic semiconductor layer. As shown in FIG. 4, the gate electrode 14 is formed so as to cover the source electrode 11 and the drain electrode 15 when viewed from either side.
- the organic transistor of this embodiment is manufactured, for example, as follows.
- a source electrode 11 is formed on a substrate 10.
- a source electrode 11 made of indium tin oxide (ITO) or chromium (Cr) is formed to a thickness of 50 nm by a sputtering method. Not only the source electrode but also a method such as vapor deposition, sputtering, or CVD can be used to form each electrode.
- a porphyrin compound such as copper phthalocyanine (so-called CuPc) or tris is formed on the first p-type organic semiconductor layer 13 p 1 as an In-type organic semiconductor layer 13 n 1.
- CuPc copper phthalocyanine
- a 25-nm-thick quinoline derivative such as an aluminum complex (so-called Alq 3) is deposited by resistance heating evaporation.
- a 1 is formed as a gate electrode 14 into a flat plate with a thickness of 50 nm by resistance heating evaporation. Note that it is also configured to cover a few nm thickness of the electron injection layer of the entire gate electrode 14 such as L i 0 2.
- the same Cu Pc or A1q3 as the first n-type organic semiconductor layer has a thickness of 25 nm.
- the same ⁇ -NPD as the first p-type organic semiconductor layer is formed as the second p-type organic semiconductor layer 13 p 2 to have a thickness of 2 ⁇ m. Deposit at 5 nm.
- a 1 was formed as a drain electrode 15 with a thickness of 200 nm by resistance heating evaporation to form an organic transistor. You can make a rainbow.
- the operation of the obtained organic transistor is a barrier when the drain electrode 15 is grounded, the potential of the source electrode 11 is set to +10 V, and the potential of the gate electrode 14 is set to +20 V. Rises to an off state.
- the gate electrode 14 is opened while the drain electrode 15 is grounded and the potential of the source electrode 11 is set to +10 V, only the junction between the organic semiconductor layers is formed, so that the ON state is established. And the current flows.
- the device includes a first n-type organic semiconductor layer 13 n1, a first p-type organic semiconductor layer 13 p1, a gate electrode 14, The second p-type organic semiconductor layer 13p2, the second n-type organic semiconductor layer 13n2, and the drain electrode 15 are sequentially stacked. Therefore, the organic transistor includes the first and second n-type organic semiconductor layers 13 nl and 13 n2 sandwiched between the source electrode 11 and the drain electrode 15 and the first p-type organic semiconductor layer sandwiched between the n-type organic semiconductor layers 13 n2.
- Type organic semiconductor layer 13 p 1 and second p-type organic semiconductor layer 13 p 2 p-type organic semiconductor layer, and the first p-type organic semiconductor layer 13 p 1 and second p-type organic semiconductor layer 13 It can also be configured to have the gate electrode 14 embedded in p2.
- the gate electrode 14 is formed in a plate shape, but in addition, as shown in FIG. 15, the gate electrode 14 may be formed into a plurality of strip-shaped branches. Can be formed in the shape of a blind. In this case, the gate electrode may have any shape as long as a voltage can be applied almost uniformly to the organic semiconductor layer in contact therewith.
- the first p-type organic semiconductor layer 13 p 1 and the second p-type organic semiconductor layer 13 p 2 By providing an organic light-emitting layer 16 having an electron transporting property between the source electrode 11 and the first p-type organic semiconductor layer 13 p 1, an organic transistor-type organic electroluminescent device can be formed.
- each of the organic material layers including the organic light-emitting layer composed of at least one thin film of an organic compound material exhibiting electoluminescence (EL), which emits light by current injection serves as an active element.
- a plurality of provided organic EL elements can be formed on a display panel substrate in a predetermined pattern such as a matrix.
- the organic EL element is formed by sequentially forming an organic material layer between a pair of electrode layers on a substrate, with a light extraction side being made of a transparent material.
- the organic light emitting layer 16 is provided between the drain electrode 15 and the second p-type organic semiconductor layer 13 p 2, contrary to the one shown in FIG. You can also.
- FIG. 17 shows a cross section of an organic transistor having an SIT structure according to another embodiment.
- a p-type organic semiconductor layer 13 having carrier mobility is provided so as to be sandwiched between the source electrode 11 and the drain electrode 15.
- the organic semiconductor layer 13 may be n-type (electron-transporting) in addition to p-type (hole-transporting), and can be formed of a material having at least one of a hole-transporting property and an electron-transporting property.
- a gate electrode composed of two plate-like intermediate electrode pieces 14 a and 14 b is embedded. Intermediate electrode pieces 14 a and 14 b are sources
- the electrode 11 and the drain electrode 15 are arranged in parallel and separated from each other. As shown in FIG.
- the intermediate electrode pieces 14a and 14b are electrically connected to each other and complement each other as the gate electrode 14 when viewed from either side of the source electrode 11 and the drain electrode 15. It is formed so as to cover these electrodes.
- the intermediate electrode pieces 14a and 14b are spaced apart from each other so as to be present in two planes between the source electrode 11 and the drain electrode 15, respectively. If it is between 15, it is also possible to provide intermediate electrode pieces in three or more planes.
- the organic transistor of this embodiment is manufactured, for example, as follows.
- a source electrode 11 is formed on a substrate 10.
- a source electrode 11 made of indium tin oxide (ITO) or chromium (Cr) is formed to a thickness of 50 nm by a sputtering method.
- ITO indium tin oxide
- Cr chromium
- not only the source electrode but also a method such as evaporation, sputtering, or CVD can be used for forming each electrode.
- a 1 is first applied using a mask on a part of the upper plane of the first organic semiconductor layer 13 a so as to cover a part of the source electrode 11 through the first organic semiconductor layer 13 a.
- the intermediate electrode piece 14a is formed into a flat plate with a thickness of 50 nm by resistance heating evaporation.
- the other part of the first organic semiconductor layer 13a and the first On the inter-electrode piece 14a the same ⁇ -NPD as the first organic semiconductor layer is formed as the second organic semiconductor layer 13b with a film thickness of about 50 nm.
- the entire substrate 10 is heated to a temperature equal to or higher than the glass transition point of the organic semiconductor layer and equal to or lower than the melting point. That is, the first intermediate electrode piece 14a is embedded in the second organic semiconductor layer 13b by heating at a temperature 10 to 50 higher than 96, which is the glass transition temperature of ⁇ -NPD, for example, at 130 for 10 minutes. Then, the surface of the second organic semiconductor layer 13b is flattened.
- the second organic semiconductor layer 13 b softens and fuses with the first organic semiconductor layer 13 a by gravity and surface tension.
- the heat treatment can be performed in the air, but is preferably performed in a vacuum chamber or in a chamber purged with nitrogen from the viewpoint of preventing material deterioration and contamination.
- the softening temperature in the case of an organic material having a glass transition point of 96, the heating time required for softening at a heating temperature of about 150 is about 5 minutes.
- the entire substrate is heated by a heater in a reduced pressure or vacuum chamber, but the heating means may be a halide lamp or the like.
- a 1 is formed on a part of the upper plane of the second organic semiconductor layer 13 b by using a mask so as to cover the other part of the source electrode 11 through this.
- the intermediate electrode piece 14b is formed into a flat plate with a thickness of 50 nm by resistance heating evaporation.
- the second intermediate electrode piece 14b and the first intermediate electrode piece 14a are formed so as to complement each other and cover the source electrode 11.
- the first intermediate electrode piece 14a and the second intermediate electrode piece 14b may be formed so as to provide an overlapping portion DP that is separated from the second organic semiconductor layer 13b.
- the second intermediate electrode piece 14b is electrically connected to the first intermediate electrode piece 14a, and is formed to have the same potential as the gate electrode.
- the distance between the first intermediate electrode piece 14a and the second intermediate electrode piece 14b becomes shorter than that of the conventional gate electrode in one plane.
- the booklet portion can be formed smaller than a mask formed by using a mask, can be formed close to each other with a thin film thickness, and can be formed with high accuracy and a distance between both electrodes.
- the first organic semiconductor layer 13 c is formed as the third organic semiconductor layer 13 c.
- the same ⁇ -NPD is formed with a film thickness of about 50 nm.
- the entire substrate 10 is heated to a temperature equal to or higher than the glass transition point of the organic semiconductor layer and equal to or lower than the melting point, that is, the second intermediate electrode piece 14b is embedded in the third organic semiconductor layer 13c. Perform a surface flattening process.
- A1 is formed as the drain electrode 15 with a thickness of 200 nm by a resistance heating evaporation method. Since the heat treatment is performed after the organic semiconductor layer is formed, the organic semiconductor layer is flattened, so that an organic transistor having a uniform organic semiconductor layer without unevenness can be manufactured.
- the first, second, and third organic semiconductor layers 13a, 13b, and 13c are formed from an a-NPD film of a p-type material. Good.
- the organic semiconductor layer may be at least one of an electron transporting material and a hole transporting material.
- the intermediate electrode pieces 14a and 14b are formed in a plate shape, but in addition, as shown in FIG. 26, the source electrode 11 and the drain electrode 15 are formed.
- the intermediate electrode pieces 14a and 14b of the gate electrode in the two planes between them can be formed into a plurality of strip-shaped branches, respectively, and can be formed in a comb shape or a cord shape, respectively.
- the intermediate electrode pieces 14a and 14b are electrically connected to each other and serve as the gate electrode 14 from either side of the source electrode 11 or the drain electrode 15. When viewed, they are formed so as to complement each other and cover these electrodes. Further, as shown in FIG.
- the first, second, and third organic semiconductor layers 13a, 13b, and 13c are formed by a hole transport layer.
- an organic light-emitting layer 16 having an electron-transporting property between the source electrode 11 and the first organic semiconductor layer 13a an organic transistor-type organic electroluminescence element can be formed.
- each of the active elements is provided with an organic material layer including at least one organic light emitting layer formed of a thin film of an organic compound material exhibiting elector emission luminescence (hereinafter also referred to as EL) that emits light by current injection.
- EL elector emission luminescence
- a plurality of organic EL elements can be formed on a display panel substrate in a predetermined pattern such as a matrix.
- the organic EL device is configured by sequentially forming an organic material layer between a pair of electrode layers on a substrate, with a light extraction side made of a transparent material.
- the organic light emitting layer 16 may be provided between the drain electrode 15 and the third organic semiconductor layer 13c, contrary to the one shown in FIG. it can.
- the first intermediate electrode piece 14 a and the second intermediate electrode piece 14 b are connected to the second organic semiconductor layer 1. It may be formed so as not to provide an overlapping portion which is separated by 3b.
- an intermediate electrode piece 14 a of a gate electrode is provided on each of three planes between a source electrode 11 and a drain electrode 15. , 14b and 14c are laminated, and each of them can be formed as a plurality of strip-shaped branches in a comb shape or a cord shape.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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AU2003281009A AU2003281009A1 (en) | 2002-07-15 | 2003-07-10 | Organic semiconductor device and method for manufacturing same |
EP03741311A EP1536484A4 (en) | 2002-07-15 | 2003-07-10 | ORGANIC SEMICONDUCTOR AND METHOD FOR MANUFACTURING THE SAME |
US10/521,442 US20060208251A1 (en) | 2002-07-15 | 2003-07-10 | Organic semiconductor device and producing method therefor |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2002205634A JP2004047881A (ja) | 2002-07-15 | 2002-07-15 | 有機半導体素子及びその製造方法 |
JP2002-205635 | 2002-07-15 | ||
JP2002205635A JP4331921B2 (ja) | 2002-07-15 | 2002-07-15 | 有機半導体素子 |
JP2002-205634 | 2002-07-15 |
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WO2004008545A1 true WO2004008545A1 (ja) | 2004-01-22 |
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PCT/JP2003/008761 WO2004008545A1 (ja) | 2002-07-15 | 2003-07-10 | 有機半導体素子及びその製造方法 |
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US (1) | US20060208251A1 (ja) |
EP (1) | EP1536484A4 (ja) |
KR (1) | KR20050028020A (ja) |
CN (1) | CN1669156A (ja) |
AU (1) | AU2003281009A1 (ja) |
WO (1) | WO2004008545A1 (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7659138B2 (en) * | 2003-12-26 | 2010-02-09 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing an organic semiconductor element |
US7554121B2 (en) * | 2003-12-26 | 2009-06-30 | Semiconductor Energy Laboratory Co., Ltd. | Organic semiconductor device |
GB0400997D0 (en) * | 2004-01-16 | 2004-02-18 | Univ Cambridge Tech | N-channel transistor |
EP1718123A4 (en) * | 2004-02-16 | 2013-01-16 | Japan Science & Tech Agency | LIGHT-EMITTING TRANSISTOR |
JP4967143B2 (ja) * | 2004-08-30 | 2012-07-04 | 日本電信電話株式会社 | 有機半導体発光装置およびそれを用いた表示装置 |
JP5197960B2 (ja) * | 2004-10-25 | 2013-05-15 | パナソニック株式会社 | 電子デバイスおよびその製造方法、ならびにそれを用いた電子機器 |
KR20060080446A (ko) * | 2005-01-05 | 2006-07-10 | 삼성전자주식회사 | 수직형 유기 박막 트랜지스터 및 유기 발광 트랜지스터 |
JPWO2007043704A1 (ja) * | 2005-10-14 | 2009-04-23 | パイオニア株式会社 | 発光素子及び表示装置 |
KR100741102B1 (ko) * | 2005-12-22 | 2007-07-20 | 삼성에스디아이 주식회사 | 유기 박막 트랜지스터의 제조 방법, 유기 박막 트랜지스터및 이를 구비한 평판 표시 장치 |
KR100794570B1 (ko) * | 2006-04-06 | 2008-01-17 | 서강대학교산학협력단 | 세로형 유기 박막 트랜지스터 및 이의 제조방법 |
KR20090002787A (ko) * | 2007-07-04 | 2009-01-09 | 삼성전자주식회사 | 트랜지스터 구조를 이용한 발광소자 및 수광소자 |
JP5347377B2 (ja) * | 2007-08-31 | 2013-11-20 | 大日本印刷株式会社 | 縦型有機トランジスタ、その製造方法及び発光素子 |
FR2953994B1 (fr) * | 2009-12-15 | 2012-06-08 | Commissariat Energie Atomique | Source de photons resultants d'une recombinaison d'excitons localises |
DE102010041331A1 (de) * | 2010-09-24 | 2012-03-29 | Siemens Aktiengesellschaft | Ladungsträgermodulation zur Farb- und Helligkeitsabstimmung in organischen Leuchtdioden |
EP2752906B1 (en) * | 2012-05-31 | 2016-07-20 | LG Display Co., Ltd. | Organic light emitting diode |
JP6116018B2 (ja) | 2015-01-29 | 2017-04-19 | 国立大学法人 東京大学 | 有機半導体素子 |
US11049948B2 (en) * | 2018-06-29 | 2021-06-29 | Solsona Enterprise, Llc | Vertical thin film transistor with perforated or comb-gate electrode configuration |
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JPS6419778A (en) * | 1987-07-15 | 1989-01-23 | Fuji Electric Co Ltd | Electrostatic induction type field-effect transistor |
JPH01209767A (ja) * | 1988-02-18 | 1989-08-23 | Canon Inc | 電気・電子デバイス素子 |
JP2001189466A (ja) * | 1999-12-28 | 2001-07-10 | Toshiba Corp | スイッチング素子の製造方法、スイッチング素子及びスイッチング素子アレイ |
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GB2169608B (en) * | 1984-12-28 | 1988-02-24 | Hoechst Gosei Kk | Process for producting electrically conductive composite polymer article |
DE19534494A1 (de) * | 1995-09-18 | 1997-03-20 | Basf Ag | Elektronische Bauelemente mit Transistorfunktion |
JP3268993B2 (ja) * | 1997-01-31 | 2002-03-25 | 三洋電機株式会社 | 表示装置 |
US5917280A (en) * | 1997-02-03 | 1999-06-29 | The Trustees Of Princeton University | Stacked organic light emitting devices |
US6337492B1 (en) * | 1997-07-11 | 2002-01-08 | Emagin Corporation | Serially-connected organic light emitting diode stack having conductors sandwiching each light emitting layer |
US6420031B1 (en) * | 1997-11-03 | 2002-07-16 | The Trustees Of Princeton University | Highly transparent non-metallic cathodes |
US6608323B2 (en) * | 2000-07-24 | 2003-08-19 | Northwestern University | n-type thiophene semiconductors |
US6884093B2 (en) * | 2000-10-03 | 2005-04-26 | The Trustees Of Princeton University | Organic triodes with novel grid structures and method of production |
DE10051369A1 (de) * | 2000-10-17 | 2002-05-02 | Fraunhofer Ges Forschung | Polymeres Schaltelement |
JP3856202B2 (ja) * | 2001-10-05 | 2006-12-13 | 日本電気株式会社 | 有機薄膜トランジスタ |
EP1367659B1 (en) * | 2002-05-21 | 2012-09-05 | Semiconductor Energy Laboratory Co., Ltd. | Organic field effect transistor |
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2003
- 2003-07-10 KR KR1020057000613A patent/KR20050028020A/ko not_active Application Discontinuation
- 2003-07-10 CN CNA03816762XA patent/CN1669156A/zh active Pending
- 2003-07-10 EP EP03741311A patent/EP1536484A4/en not_active Withdrawn
- 2003-07-10 WO PCT/JP2003/008761 patent/WO2004008545A1/ja active Application Filing
- 2003-07-10 US US10/521,442 patent/US20060208251A1/en not_active Abandoned
- 2003-07-10 AU AU2003281009A patent/AU2003281009A1/en not_active Abandoned
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JPH01209767A (ja) * | 1988-02-18 | 1989-08-23 | Canon Inc | 電気・電子デバイス素子 |
JP2001189466A (ja) * | 1999-12-28 | 2001-07-10 | Toshiba Corp | スイッチング素子の製造方法、スイッチング素子及びスイッチング素子アレイ |
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Title |
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See also references of EP1536484A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1536484A1 (en) | 2005-06-01 |
KR20050028020A (ko) | 2005-03-21 |
EP1536484A4 (en) | 2009-01-07 |
US20060208251A1 (en) | 2006-09-21 |
AU2003281009A1 (en) | 2004-02-02 |
CN1669156A (zh) | 2005-09-14 |
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